Like bathing suits, sunscreens aren't one-style-fits-all—but the best ones are flattering, nonirritating, and prevent indecent exposure. New products offer extra-strength or innovative ingredients to deter aging, burning, and skin cancer.

AVEENO CONTINUOUS PROTECTION SUNBLOCK LOTION FOR FACE SPF 70

An antioxidant blend of soy and vitamins A, C, and E "reduces free-radical damage," says Nicholas J. Lowe, clinical professor of dermatology at UCLA. (With daily use, he adds, high SPFs can be aggravating to the skin; usually SPF 15 to SPF 30 will suffice to prevent sunburn.)